DSP ULE Starter Kit Посібник користувача - Сторінка 16

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5. Interfacing the DHX91 EVB ULE Node to your MCU

Now you are ready to drive the ULE Node with YOUR MCU. You will need to bypass the RS232

connector and IC on the EVB and configure your UART driver for appropriate protocol – both

described below. You can also reconnect the AMP2_OUT from the Wakeup Button and connect to an

IO from your MCU for triggering wakeup of the ULE Node.

Remove JP21,22 and connect RxD and TxD from external MCU to GPIO9 and GPIO10

AMP_

OUT2

UART protocol settings are as follows:



Baud rate: 115200K bps (configurable)



Data: 8 bit



Parity bit: None



Stop bit: 1 bit



Network byte order: Big Endian

Flow control: Enable/Disable (at compilation time, optional). Recovery from message loss should be done in

higher layers.

Rev1.0

ULE Starter Kit User's Manual

June 2015

JP21 & 22